Psychosexual health significantly negatively predicts non-suicidal self-injury behaviors in college students, with adult attachment and social support serving as mediating pathways between them.
Key Findings
Results
The prevalence of non-suicidal self-injury (NSSI) behaviors among the college student sample was 12.53%.
Sample consisted of 1193 college students majoring in preschool and primary education
Participants were first-year (freshmen) and second-year (sophomore) students at a higher vocational college in Shaanxi
The sample was primarily women
NSSI was assessed using a dedicated NSSI questionnaire
Results
Psychosexual health development (APDS) significantly negatively predicted non-suicidal self-injury behaviors.
The relationship was confirmed using SPSS Pearson correlation analysis and Amos structural equation modeling (SEM)
Bootstrap method was used to test mediating effects
Higher psychosexual health levels were associated with lower rates of NSSI
The direct effect of APDS on NSSI was statistically significant
Results
Adult attachment (AAS) individually mediated the relationship between psychosexual health development and NSSI behaviors.
APDS significantly negatively predicted NSSI under the mediating effect of AAS
The mediation was tested using Amos SEM and Bootstrap method
Secure adult attachment was identified as a pathway through which psychosexual health influences NSSI
This individual mediating pathway was statistically significant
Results
Social support (SSRS) individually mediated the relationship between psychosexual health development and NSSI behaviors.
APDS significantly negatively predicted NSSI under the mediating effect of SSRS
Social support was measured using the SSRS questionnaire
Good social support was identified as a separate mediating pathway between psychosexual health and NSSI
This individual mediating pathway was statistically significant
Results
The chained mediating effect of adult attachment and social support together between psychosexual health and NSSI was not statistically significant.
When AAS and SSRS were combined in a chained mediation model, the effect was described as 'insignificant'
This contrasts with the significant individual mediating effects of AAS and SSRS separately
The chained mediation was tested using Amos SEM and Bootstrap method
This suggests the sequential pathway from APDS → AAS → SSRS → NSSI did not reach statistical significance
Methods
The study employed a mixed design with quantitative pretests and tracing post-tests to examine psychosexual health and NSSI.
1193 college students participated in the study
Four instruments were used: APDS, AAS, SSRS, and NSSI questionnaires
The study used Pearson correlation, structural equation modeling (SEM) via Amos, and Bootstrap mediation testing
Participants were from a higher vocational college in Shaanxi, China
What This Means
This research suggests that how well young people develop a healthy understanding of their own psychosexual identity (encompassing emotional, psychological, and social aspects of sexual development) is meaningfully connected to whether they engage in non-suicidal self-injury (NSSI) — behaviors like cutting or burning oneself without the intent to die. Among 1,193 Chinese vocational college students, about 1 in 8 (12.53%) reported engaging in NSSI behaviors. Students with better psychosexual health development were less likely to engage in NSSI.
The study also found that this protective relationship works partly through two separate pathways: developing secure adult attachment (the ability to form healthy, trusting close relationships) and having stronger social support networks. Each of these factors individually helped explain why better psychosexual health was linked to less self-injury. However, the chain where psychosexual health leads to better attachment, which then leads to better social support, which then reduces NSSI, did not show a statistically significant effect when all steps were combined together.
This research suggests that schools and educational programs could potentially reduce self-harm behaviors among adolescents by incorporating psychosexual health education into their curricula, with the idea that helping young people develop a healthy sense of their own identity and relationships could strengthen their attachment security and social connections — both of which appear to buffer against self-injury. The findings point toward early group-based prevention programs and psychological guidance as practical strategies for campuses looking to address NSSI in student populations.
Gao P, Zhang Y, Zhao M. (2025). Psychosexual health's impact on non-suicidal self-injury of college students.. Scientific reports. https://doi.org/10.1038/s41598-025-08900-8